Hi, it's fantastic to see you here. I'm Mairaj π
- β€ Senior Backend Engineer, 6 years β fintech, crypto/Web3, and compliance (KYC/AML) systems
- π§ TypeScript/Node.js/NestJS backends: payment pipelines, transaction settlement, database optimization, observability
- π Data engineering β Databricks & Snowflake pipelines (see pinned repos) and a Kaggle notebook on real data-quality work
- π₯ 2026 Goals: Write less code, deliver more value
- β‘ Fun fact: I love working out and writing
- π I share thoughts here: medium.com/@immairaj
π Β My Latest Writings
- I rebuilt my hand-written pipeline in dbt and planted the bugs myself
- Typing is the bottleneck in agentic coding, not thinking
- Databricks vs Snowflake: what actually happens when you build the same pipeline on both
- AI agents donβt go rogue, the containment around them does
- Why your data lake isnβt as slow as you think
π Β Featured Projects
| Project | What it is |
|---|---|
| data-lab2 | CDC health-survey pipeline built in parallel on Databricks and Snowflake β medallion architecture, quarantine/quality gates, value-by-value verified output across both platforms |
| fhir-dataset | FHIR R4 (Synthea synthetic) healthcare data pipeline on Databricks, PySpark + Databricks' own FHIR-flattening library |
| yelp-dataset | Nested, variable-schema semi-structured dataset pipeline for the same platform-comparison programme |
| patient-notes-dataset | Unstructured clinical text extraction (NBME Clinical Patient Notes, 42,146 notes) |
| BRFSS data-cleaning case study (Kaggle) | Walks through the real defects found cleaning 5 years of BRFSS data, and an independent validation against a public reference notebook |
π¦ Β Open Source Tools
| Project | What it is |
|---|---|
| standup-stretch | Nudges you to stand up and stretch after 90 minutes β a Claude Code plugin, a standalone CLI, and a Claude Code skill, all sharing one TypeScript core |
| logcli-shortcuts | Schema-agnostic shell shortcuts for querying Grafana Loki from the terminal β or handing to a coding agent for natural-language log search |
| ayat-of-the-day | A real Quranic ayat, fetched live every day β CLI and Claude Code plugin |
π οΈ Β Core Stack



